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350 lines
9.7 KiB
C
350 lines
9.7 KiB
C
/*
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* gstvaapiprofile.c - VA profile abstraction
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*
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* gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapiprofile
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* @short_description: VA profile abstraction
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*/
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#include "config.h"
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#include <string.h>
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#include <gst/gstbuffer.h>
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#include "gstvaapicompat.h"
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#include "gstvaapiprofile.h"
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#define GST_VAAPI_PROFILE_CODEC(profile) \
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((GstVaapiCodec)(((guint32)profile) & GST_MAKE_FOURCC(0xff,0xff,0xff,0)))
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typedef struct _GstVaapiProfileMap GstVaapiProfileMap;
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typedef struct _GstVaapiEntrypointMap GstVaapiEntrypointMap;
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struct _GstVaapiProfileMap {
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GstVaapiProfile profile;
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VAProfile va_profile;
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const char *caps_str;
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const gchar *profile_str;
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};
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struct _GstVaapiEntrypointMap {
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GstVaapiEntrypoint entrypoint;
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VAEntrypoint va_entrypoint;
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};
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/* Profiles */
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static const GstVaapiProfileMap gst_vaapi_profiles[] = {
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{ GST_VAAPI_PROFILE_MPEG2_SIMPLE, VAProfileMPEG2Simple,
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"video/mpeg, mpegversion=2", "simple"
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},
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{ GST_VAAPI_PROFILE_MPEG2_MAIN, VAProfileMPEG2Main,
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"video/mpeg, mpegversion=2", "main"
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},
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{ GST_VAAPI_PROFILE_MPEG4_SIMPLE, VAProfileMPEG4Simple,
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"video/mpeg, mpegversion=4", "simple"
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},
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{ GST_VAAPI_PROFILE_MPEG4_ADVANCED_SIMPLE, VAProfileMPEG4AdvancedSimple,
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"video/mpeg, mpegversion=4", "advanced-simple"
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},
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{ GST_VAAPI_PROFILE_MPEG4_MAIN, VAProfileMPEG4Main,
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"video/mpeg, mpegversion=4", "main"
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},
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#if VA_CHECK_VERSION(0,30,0)
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{ GST_VAAPI_PROFILE_H263_BASELINE, VAProfileH263Baseline,
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"video/x-h263, variant=itu, h263version=h263", "baseline"
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},
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#endif
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{ GST_VAAPI_PROFILE_H264_BASELINE, VAProfileH264Baseline,
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"video/x-h264", "baseline"
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},
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{ GST_VAAPI_PROFILE_H264_MAIN, VAProfileH264Main,
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"video/x-h264", "main"
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},
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{ GST_VAAPI_PROFILE_H264_HIGH, VAProfileH264High,
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"video/x-h264", "high"
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},
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{ GST_VAAPI_PROFILE_VC1_SIMPLE, VAProfileVC1Simple,
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"video/x-vc1", "simple"
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},
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{ GST_VAAPI_PROFILE_VC1_MAIN, VAProfileVC1Main,
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"video/x-vc1", "main"
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},
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{ GST_VAAPI_PROFILE_VC1_ADVANCED, VAProfileVC1Advanced,
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"video/x-vc1", "advanced"
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},
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{ 0, }
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};
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/* Entry-points */
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static const GstVaapiEntrypointMap gst_vaapi_entrypoints[] = {
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{ GST_VAAPI_ENTRYPOINT_VLD, VAEntrypointVLD },
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{ GST_VAAPI_ENTRYPOINT_IDCT, VAEntrypointIDCT },
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{ GST_VAAPI_ENTRYPOINT_MOCO, VAEntrypointMoComp },
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#if VA_CHECK_VERSION(0,30,0)
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{ GST_VAAPI_ENTRYPOINT_SLICE_ENCODE, VAEntrypointEncSlice },
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#endif
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{ 0, }
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};
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static const GstVaapiProfileMap *
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get_profiles_map(GstVaapiProfile profile)
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{
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const GstVaapiProfileMap *m;
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for (m = gst_vaapi_profiles; m->profile; m++)
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if (m->profile == profile)
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return m;
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return NULL;
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}
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static const GstVaapiEntrypointMap *
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get_entrypoints_map(GstVaapiEntrypoint entrypoint)
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{
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const GstVaapiEntrypointMap *m;
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for (m = gst_vaapi_entrypoints; m->entrypoint; m++)
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if (m->entrypoint == entrypoint)
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return m;
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return NULL;
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}
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/**
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* gst_vaapi_profile:
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* @profile: a #VAProfile
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*
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* Converts a VA profile into the corresponding #GstVaapiProfile. If
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* the profile cannot be represented by #GstVaapiProfile, then zero is
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* returned.
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*
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* Return value: the #GstVaapiProfile describing the @profile
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*/
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GstVaapiProfile
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gst_vaapi_profile(VAProfile profile)
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{
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const GstVaapiProfileMap *m;
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for (m = gst_vaapi_profiles; m->profile; m++)
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if (m->va_profile == profile)
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return m->profile;
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return 0;
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}
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/**
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* gst_vaapi_profile_from_codec_data:
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* @codec: a #GstVaapiCodec
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* @buffer: a #GstBuffer holding code data
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*
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* Tries to parse VA profile from @buffer data and @codec information.
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*
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* Return value: the #GstVaapiProfile described in @buffer
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*/
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static GstVaapiProfile
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gst_vaapi_profile_from_codec_data_h264(GstBuffer *buffer)
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{
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/* MPEG-4 Part 15: Advanced Video Coding (AVC) file format */
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uint8_t * const buf = GST_BUFFER_DATA(buffer);
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if (buf[0] != 1) /* configurationVersion = 1 */
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return 0;
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switch (buf[1]) { /* AVCProfileIndication */
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case 66: return GST_VAAPI_PROFILE_H264_BASELINE;
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case 77: return GST_VAAPI_PROFILE_H264_MAIN;
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case 100: return GST_VAAPI_PROFILE_H264_HIGH;
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}
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return 0;
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}
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static GstVaapiProfile
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gst_vaapi_profile_from_codec_data(GstVaapiCodec codec, GstBuffer *buffer)
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{
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GstVaapiProfile profile;
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if (!codec || !buffer)
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return 0;
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switch (codec) {
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case GST_VAAPI_CODEC_H264:
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profile = gst_vaapi_profile_from_codec_data_h264(buffer);
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break;
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default:
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profile = 0;
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break;
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}
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return profile;
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}
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/**
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* gst_vaapi_profile_from_caps:
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* @caps: a #GstCaps
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*
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* Converts @caps into the corresponding #GstVaapiProfile. If the
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* profile cannot be represented by #GstVaapiProfile, then zero is
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* returned.
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*
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* Return value: the #GstVaapiProfile describing the @caps
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*/
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GstVaapiProfile
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gst_vaapi_profile_from_caps(GstCaps *caps)
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{
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const GstVaapiProfileMap *m;
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GstCaps *caps_test;
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GstStructure *structure;
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const gchar *profile_str;
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GstVaapiProfile profile, best_profile;
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GstBuffer *codec_data = NULL;
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const gchar *name;
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gsize namelen;
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if (!caps)
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return 0;
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structure = gst_caps_get_structure(caps, 0);
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if (!structure)
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return 0;
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name = gst_structure_get_name(structure);
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namelen = strlen(name);
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profile_str = gst_structure_get_string(structure, "profile");
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if (!profile_str) {
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const GValue *v_codec_data;
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v_codec_data = gst_structure_get_value(structure, "codec_data");
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if (v_codec_data)
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codec_data = gst_value_get_buffer(v_codec_data);
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}
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profile = 0;
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best_profile = 0;
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for (m = gst_vaapi_profiles; !profile && m->profile; m++) {
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if (strncmp(name, m->caps_str, namelen) != 0)
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continue;
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caps_test = gst_caps_from_string(m->caps_str);;
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if (gst_caps_is_always_compatible(caps, caps_test)) {
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best_profile = m->profile;
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if (profile_str && m->profile_str &&
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strcmp(profile_str, m->profile_str) == 0)
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profile = best_profile;
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}
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if (!profile)
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profile = gst_vaapi_profile_from_codec_data(
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GST_VAAPI_PROFILE_CODEC(m->profile),
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codec_data
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);
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gst_caps_unref(caps_test);
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}
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return profile ? profile : best_profile;
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}
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/**
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* gst_vaapi_profile_get_va_profile:
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* @profile: a #GstVaapiProfile
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*
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* Converts a #GstVaapiProfile into the corresponding VA profile. If
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* no matching VA profile was found, -1 is returned and this error
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* must be reported to be fixed.
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*
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* Return value: the VA profile, or -1 if none was found
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*/
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VAProfile
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gst_vaapi_profile_get_va_profile(GstVaapiProfile profile)
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{
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const GstVaapiProfileMap * const m = get_profiles_map(profile);
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return m ? m->va_profile : (VAProfile)-1;
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}
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/**
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* gst_vaapi_profile_get_caps:
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* @profile: a #GstVaapiProfile
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*
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* Converts a #GstVaapiProfile into the corresponding #GstCaps. If no
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* matching caps were found, %NULL is returned.
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*
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* Return value: the newly allocated #GstCaps, or %NULL if none was found
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*/
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GstCaps *
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gst_vaapi_profile_get_caps(GstVaapiProfile profile)
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{
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const GstVaapiProfileMap * const m = get_profiles_map(profile);
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GstCaps *caps;
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if (!m)
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return NULL;
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caps = gst_caps_from_string(m->caps_str);
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if (!caps)
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return NULL;
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gst_caps_set_simple(caps, "profile", G_TYPE_STRING, m->profile_str, NULL);
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return caps;
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}
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/**
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* gst_vaapi_profile_get_codec:
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* @profile: a #GstVaapiProfile
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*
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* Extracts the #GstVaapiCodec from @profile.
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*
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* Return value: the #GstVaapiCodec from @profile
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*/
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GstVaapiCodec
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gst_vaapi_profile_get_codec(GstVaapiProfile profile)
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{
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return GST_VAAPI_PROFILE_CODEC(profile);
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}
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/**
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* gst_vaapi_entrypoint:
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* @entryprofile: a #VAEntrypoint
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*
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* Converts a VA entry-point into the corresponding #GstVaapiEntrypoint.
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* If the entry-point cannot be represented by #GstVaapiEntrypoint,
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* then zero is returned.
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*
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* Return value: the #GstVaapiEntrypoint describing the @entrypoint
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*/
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GstVaapiEntrypoint
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gst_vaapi_entrypoint(VAEntrypoint entrypoint)
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{
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const GstVaapiEntrypointMap *m;
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for (m = gst_vaapi_entrypoints; m->entrypoint; m++)
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if (m->va_entrypoint == entrypoint)
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return m->entrypoint;
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return 0;
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}
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/**
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* gst_vaapi_entrypoint_get_va_entrypoint:
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* @entrypoint: a #GstVaapiEntrypoint
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*
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* Converts a #GstVaapiEntrypoint into the corresponding VA
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* entry-point. If no matching VA entry-point was found, -1 is
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* returned and this error must be reported to be fixed.
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*
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* Return value: the VA entry-point, or -1 if none was found
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*/
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VAEntrypoint
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gst_vaapi_entrypoint_get_va_entrypoint(GstVaapiEntrypoint entrypoint)
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{
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const GstVaapiEntrypointMap * const m = get_entrypoints_map(entrypoint);
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return m ? m->va_entrypoint : (VAEntrypoint)-1;
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}
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